Add class name from traits

So i got it working after some more tries, i will try to explain how i got it to work. When you define the trait

defaults: {
       traits: [{type: 'select',
		options: [{
                   { value: 'myCustomClass', name: 'Option A' },
                }],
		label: 'traitLabel',
		name: 'traitName',
		changeProp: 1
        }]
},

you can declare a name. When you select option A from the dropdown selection you can track this change on init(), as this.on('change:traitName', this.handleChange);, then all you have to do is write down the handleChange function to do whatever you want it to do. Below i paste the code for how i handled adding/replacing a class.

handleChange(props) {
	var classes = this.getAttributes().class,
		newClass = props.changed.traitName,
		arClasses = classes.split(" ");
	var filter = arClasses.filter(function (el) {
		if (['myGivenClass'].includes(el))
			return el;
	});
	if (filter.length != 0) {
		this.removeClass(filter);
		classes = this.getAttributes().class
	}
	this.setClass(classes + " " + newClass)
},

sry for the formatting but i do not know how to paste formatted code yet :P

sry for the formatting but i do not know how to paste formatted code yet :P

https://guides.github.com/features/mastering-markdown/#GitHub-flavored-markdown